IIT JEE PERMUTATIONS AND COMBINATIONS Let `P_n` denotes the number of ways in which three peopl...

Let `P_n`
denotes the
number of ways in which three people can be selected out of `n`
people sitting in a row, if no two of them are
consecutive. If `P_(n+1),-P_n=15`
then the
value of `n`
is______.

==== SCORE 100% WITH DOUBTNUT ====

Doubtnut ऍप पर आप कक्षा ६ से १२ (IIT JEE तक) के NCERT and IIT JEE Mains & Advanced के मैथ/गणित के सभी सवालों के वीडियो देखिये और मुफ्त में खोजिये किसी भी गणित सवाल का जवाब - १ लाख से भी ज़्यादा सवालों के जवाब हैं Doubtnut ऍप पर.

Doubtnut App has video solutions of ALL the NCERT questions from Class 6 to 12 (including IIT JEE). You can also ask any Math question and get a video solution for FREE from a library of more than 1 Lakh Math Videos.

#jeemains2019 #iitjeemaths #cengage #cengagemaths #cengagesolution #jeemains.

==== FOLLOW US ON====